Rapid 4044 - Page 153

SECTION 25: RAPID
®
4000-SERIES START-UP PROCEDURES
145 of 154
G. Operational Checks- Fan Operation
__ Fan rotation is correct. (See rotation sticker in the unit.)
__ Check and record the following:
Volts (Fan Off) Phase 1-2 ___ Phase 2-3 ___ Phase 1-3 ___
Volts (Fan On) Phase 1-2 ___ Phase 2-3 ___ Phase 1-3 ___
Running Amps Phase 1 ___ Phase 2 ___ Phase 3 ___
Differential pressure drop across burner. (Measured at AFS tubing test ports.) 20% OA ___ 100% OA ___
H. Operational Checks- Burner Operation
Inlet Standing Gas Pressure (in. w.c.) _____________________________________________________
___ Pilot is approximately the size of a baseball.
Pilot Line Pressure (in. w.c.) _____________________________________________________________
Flame Signal Relay (VDC) ______________________________________________________________
___ Low re gas pressure produ ces a minimum continuous ribbon of flame.
Burner High Fire Gas Pressure (in. w.c.) ___________________________________________________
Forced High Fire Inlet Gas Pressure (in. w.c.) _______________________________________________
Forced High Fire Mod. Gas Valve Volts (VDC) _______________________________________________
High Fire Burner Flame Length (in.) _______________________________________________________
Flame Color _________________________________________________________________________
___ Low airflow switch opens on pressure drop. (Setpoint at .2" w.c.)
___ High airflow switch opens on pressure rise. (Setpoint at 1.35" w.c.)
___ High temperature limit switch opens on temperature rise.
___ Low gas pressure limit switch opens on pressure fall.
___ High gas press
ure limit switch opens on pressure rise.
___ Manifold gas leak test.
___ Burner responds properly to room temperature setpoint changes.